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JavaScript at Davar Web Site

Please find at the link below samples of JavaScript programming
techniques along with several useful fully-functional JavaScripts.

http://www.davar.net/INTERNET/JAVA-SCR/JAVA-SCR.HTM

JavaScript Frequently Asked Questions
JavaScript programming code patters
Extract navigation bar generation (function)
Local control of modification date colors (driven by date difference)
Random song (random selection from a list sectioned into 3 parts)
Random problem (random selection from a list sectioned into "n" parts)
Random tagline (random selection controlled by selection history)
Alphabet hyperlinks generation (function)
Go board position generation (function)
Productivity issues of the document.write
JavaScript links

--
Best regards,
Vladimir Veytsel.
http://www.davar.net
Jul 20 '05 #1
2 3482
In article <3F***************@optonline.net>, Vladimir Veytsel
<Da***@optonline.net> writes:
http://www.davar.net/INTERNET/JAVA-SCR/JAVA-SCR.HTM

JavaScript Frequently Asked Questions


Why is this:

Math.floor(Math.random()*(N-M+1))%(N-M+1)+M

Better than whats in the c.l.j FAQ?

http://www.jibbering.com/faq/#FAQ4_22
function Random(x) { return Math.floor(x*Math.random()) }
--
Randy
All code posted is dependent upon the viewing browser
supporting the methods called, and Javascript being enabled.
Jul 20 '05 #2
hi************@aol.com (HikksNotAtHome) writes:
Why is this:

Math.floor(Math.random()*(N-M+1))%(N-M+1)+M

Better than whats in the c.l.j FAQ?

http://www.jibbering.com/faq/#FAQ4_22
function Random(x) { return Math.floor(x*Math.random()) }


Normally it isn't, but in some older browsers, the Math.random
function could return 1.0. The extra modulo operation takes care of
that. The only browsers I know of with that problem is Opera 4 and 5
(and according to Dr. J.R. Stockton, Opera 6.01 had the same problem,
but 6.05 doesn't: <URL:http://www.merlyn.demon.co.uk/js-randm.htm#MR>)

/L
--
Lasse Reichstein Nielsen - lr*@hotpop.com
Art D'HTML: <URL:http://www.infimum.dk/HTML/randomArtSplit.html>
'Faith without judgement merely degrades the spirit divine.'
Jul 20 '05 #3

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